Sand mold design support device

The sand mold design support device addresses inefficiencies in conventional design methods by quantitatively evaluating the strength and temperature distribution of sand molds, allowing for optimal thickness determination and preventing molten metal leakage.

JP2026085962APending Publication Date: 2026-05-26MAZDA MOTOR CORP
View PDF 1 Cites 0 Cited by

Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
MAZDA MOTOR CORP
Filing Date
2024-11-14
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Conventional sand mold design methods often result in excessive wall thickness, leading to inefficiencies in the amount of casting sand required and heat recycling, while existing methods for evaluating sand mold strength during casting are time-consuming and inefficient.

Method used

A sand mold design support device that quantitatively evaluates the strength of the sand mold by modeling the temperature distribution and hydrostatic pressure, allowing for the definition of a strength loss region and a remaining thickness region, enabling the design of an appropriate wall thickness through iterative modification and evaluation.

Benefits of technology

Enables efficient design of sand molds with minimal wall thickness, reducing the amount of casting sand required and optimizing the design process by accurately predicting and preventing molten metal leakage.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 2026085962000001_ABST
    Figure 2026085962000001_ABST
Patent Text Reader

Abstract

This makes it possible to design the wall thickness of the sand mold to the appropriate thickness. [Solution] The 3D shape of the object is input through the input unit 13, and a provisionally created sand mold model is input through the input unit. The calculation unit 11 predicts the solidification time until the surface of the molten metal in contact with the sand mold solidifies using CAE. The calculation unit also predicts the time change of the temperature of the sand mold after the molten metal is poured into the sand mold using CAE, and predicts the temperature distribution in the thickness direction of the sand mold at the timing when the surface of the molten metal solidifies based on the predicted solidification time. Based on the predicted temperature distribution of the sand mold, the calculation unit sets the region in the sand mold model from the surface in contact with the molten metal in the thickness direction of the sand mold until a preset temperature is reached as the strength loss region. The calculation unit evaluates the remaining thickness model from the remaining thickness model obtained by removing the strength loss region from the sand mold model and the hydrostatic pressure of the molten metal obtained by CAE, and the output unit outputs the evaluation result.
Need to check novelty before this filing date? Find Prior Art